M ODEL PAXI - 1/8 DIN C OUNTER /R ATE M ETER
? COUNT, RATE AND SLAVE DISPLAY
? 6-DIGIT 0.56" RED SUNLIGHT READABLE DISPLAY
? VARIABLE INTENSITY DISPLAY
? 10 POINT SCALING (FOR NON-LINEAR PROCESSES)
? FOUR SETPOINT ALARM OUTPUTS (W/OPTION CARD)
? RETRANSMITTED ANALOG OUTPUT (W/OPTION CARD)
? COMMUNICATION AND BUS CAPABILITIES (W/OPTION CARD)
? BUS CAPABILITIES; DEVICENET, MODBUS, AND PROFIBUS-DP
? CRIMSON PROGRAMMING SOFTWARE
PAXI SPECIFICATIONS
MAXIMUM SIGNAL FREQUENCIES TABLE
To determine the maximum frequency for the input(s), first answer the
questions with a yes (Y) or no (N). Next determine the Count Mode to be used
for the counter(s). If dual counters are used with different Count Modes, then
the lowest frequency applies to both counters.
FUNCTION QUESTIONS Single : Counter A or B (with/without rate) or Rate only Dual : Counter A & B or Rate not assigned to active single counter
Are any setpoints used?
Is Prescaler Output used?
Is Counter C used?
N
N
N
N
N
Y
N
Y
N
N
Y
Y
Y
N
N
Y
N
Y
Y
Y
N
Y
Y
Y
N
N
N
N
N
Y
N
Y
N
N
Y
Y
Y
N
N
Y
N
Y
Y
Y
N
Y
Y
Y
COUNT MODE
(Values are in KHz)
(Values are in KHz)
(Values are in KHz)
(Values are in KHz)
Count x1
Count x2
Quadrature x1
Quadrature x2
34
17
22
17
25
13
19
13
21
16
20
16
17
12
17
12
18
9
12
9
15
7
10
7
13
8
11
8
11
7
10
6
13
9*
7*
7*
12
7*
6*
6*
13
9*
6*
6*
11
7*
5*
5*
9
5*
4*
4*
7.5
4*
3.5 *
3.5 *
9
5*
3.5 *
3.5 *
7
4*
3*
3*
Quadrature x4
Rate Only
8
34
6
N/A
8
21
6
N/A
4
34
3
N/A
4
21
3
N/A
Notes:
1.
2.
3.
4.
5.
Counter Modes are explained in the Module 1 programming section.
If using Rate with single counter with direction or quadrature, assign it to Input A for the listed frequency.
* Double the listed value for Rate frequency.
Listed values are with frequency DIP switch set on HI frequency.
Derate listed frequencies by 20% during serial communications. (Placing a 5 msec. delay between serial characters will eliminate the derating.)
ANNUNCIATORS:
A - Counter A
B - Counter B
C - Counter C
? - Rate
? - Maximum (High) Rate
? - Minimum (Low) Rate
?? - Upper significant digit display of counter
SP1 - setpoint 1 output state
SP2 - setpoint 2 output state
SP3 - setpoint 3 output state
SP4 - setpoint 4 output state
RATE DISPLAY:
Accuracy: ±0.01%
Minimum Frequency: 0.01 Hz
Maximum Frequency: see Max Signal Frequencies Table.
Maximum Display: 5 Digits: 99999
Adjustable Display (low) Update: 0.1 to 99.9 seconds
Over Range Display: “ ?? ???? ”
COUNTER DISPLAYS:
Maximum display: 8 digits: ± 99999999 (greater than 6 digits display
Alternates between high order and low order.)
5
INPUTS A and B:
DIP switch selectable to accept pulses from a variety of sources
including switch contacts, TTL outputs, magnetic pickups and all
standard RLC sensors.
LOGIC: Input trigger levels V IL = 1.5 V max.; V IH = 3.75 V min.
Current sinking: Internal 7.8 K ? pull-up to +12 VDC, I MAX = 1.9 mA.
Current sourcing: Internal 3.9 K ? pull-down, 7.3 mA max. @ 28 VDC,
V MAX = 30 VDC.
Filter: Damping capacitor provided for switch contact bounce. Limits
input frequency to 50 Hz and input pulse widths to 10 msec. minimum.
MAGNETIC PICKUP:
Sensitivity: 200 mV peak
Hysteresis: 100 mV
Input impedance: 3.9 K ? @ 60 Hz
Maximum input voltage: ±40 V peak, 30 Vrms
DUAL COUNT MODES:
When any dual count mode is used, then User Inputs 1 and/or 2 will
accept the second signal of each signal pair. The user inputs do not have
the Logic/Mag, HI/LO Freq, and Sink/Source input setup switches. The
user inputs are inherently a logic input with no low frequency filtering.
Any mechanical contacts used for these inputs in a dual count mode
must be debounced externally. The user input may only be selected for
sink/source by the User Jumper placement.
PRESCALER OUTPUT:
NPN Open Collector: I SNK = 100 mA max. @ V OL = 1 VDC max. V OH = 30
VDC max. With duty cycle of 25% min. and 50 % max.
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